Well......I bought the hipers that I had been dreaming of. They look great and all but here is what has ticked me off. I bought 12x8 and 12x7 for the trail and then I contacted hiper and got some 5" wheel halves to make my 7's into 10's for my paddles. When I go to take them apart they have loctite on bolts on the center piece. I proceed to loosen them or so I think while it is twisting about every other nut out of the wheel. They use a thin nut on the back that has splines molded into the wheel which is tricky to keep a wrench on while you reach around the front to run your socket with extension. Super frustrating and damn near a two person job. I don't understand the design or the loctite or something...